datastream, year, month, tod,n, min, max, mean, std
sgpcmbeC1.c1,1997,12 0:30:00,30 ,       0,0.105237,0.013028,0.028503
sgpcmbeC1.c1,1997,12 1:30:00,30 ,       0,0.083252,0.014942, 0.02644
sgpcmbeC1.c1,1997,12 2:30:00,29 ,       0,0.173003,0.021294,0.048426
sgpcmbeC1.c1,1997,12 3:30:00,29 ,       0,0.050031, 0.00546,0.014424
sgpcmbeC1.c1,1997,12 4:30:00,29 ,       0,0.069706,0.004653,0.015799
sgpcmbeC1.c1,1997,12 5:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,12 6:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,12 7:30:00,29 ,       0,5.479721, 1.96221,1.730853
sgpcmbeC1.c1,1997,12 8:30:00,29 , 0.72056,15.25109,7.557676,4.955056
sgpcmbeC1.c1,1997,12 9:30:00,30 , 0.62356,30.78646,8.025762, 6.79356
sgpcmbeC1.c1,1997,1210:30:00,30 ,1.025054,22.76803,5.991951,4.328657
sgpcmbeC1.c1,1997,1211:30:00,29 ,1.510468,39.61565,5.737464,7.227647
sgpcmbeC1.c1,1997,1212:30:00,29 ,0.619264,33.59909,4.969717,6.713247
sgpcmbeC1.c1,1997,1213:30:00,29 ,0.993595,35.35103,7.163789,8.864335
sgpcmbeC1.c1,1997,1214:30:00,29 ,0.656148, 33.5479,7.831811,7.137529
sgpcmbeC1.c1,1997,1215:30:00,28 ,1.035347,23.41302,8.889066,6.711308
sgpcmbeC1.c1,1997,1216:30:00,29 ,       0,15.83347,6.637023,5.124718
sgpcmbeC1.c1,1997,1217:30:00,29 ,       0,3.227002,0.944527,0.964021
sgpcmbeC1.c1,1997,1218:30:00,29 ,       0,       0,       0,       0
sgpcmbeC1.c1,1997,1219:30:00,31 ,       0,0.006997,0.000226,0.001257
sgpcmbeC1.c1,1997,1220:30:00,31 ,       0,0.046648, 0.00154,0.008374
sgpcmbeC1.c1,1997,1221:30:00,29 ,       0,0.052446,0.003262,0.010709
sgpcmbeC1.c1,1997,1222:30:00,29 ,       0,0.058805,0.003565, 0.01226
sgpcmbeC1.c1,1997,1223:30:00,30 ,       0,0.137583,0.014841,0.032125